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Finding the Fourth Proportional to 1,968,905.91, 2,953,452.74 and 956,822.11

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Solution

The fourth proportional to 1,968,905.91, 2,953,452.74 and 956,822.11 is: 1,435,278.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,905.91 : 2,953,452.74 = 956,822.11 : x
  2. Step 2: Convert to fraction form
    1,968,905.91/2,953,452.74 = 956,822.11/x
  3. Step 3: Cross multiply
    1,968,905.91x = 2,953,452.74 × 956,822.11
  4. Step 4: Simplify right side
    1,968,905.91x = 2,825,928,882,472.08
  5. Step 5: Solve for x
    x = 2,825,928,882,472.08/1,968,905.91
  6. Step 6: Final answer
    x = 1,435,278.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.